VM: Fix polymorphic inlining of recognized methods in the JIT.

runtime/vm/flow_graph_inliner.cc

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/flow_graph_inliner.h"
 
 #include "vm/aot_optimizer.h"
 #include "vm/block_scheduler.h"
 #include "vm/branch_optimizer.h"
 #include "vm/compiler.h"
@@ skipping 1453 matching lines @@
       return true;
     }
   }
 
   return false;
 }
 
 
 bool PolymorphicInliner::TryInliningPoly(intptr_t receiver_cid,
                                         const Function& target) {
-  if (owner_->inliner_->use_speculative_inlining() &&
+  if ((!FLAG_precompiled_mode ||
+       owner_->inliner_->use_speculative_inlining()) &&
       TryInlineRecognizedMethod(receiver_cid, target)) {
     owner_->inlined_ = true;
     return true;
   }
 
   GrowableArray<Value*> arguments(call_->ArgumentCount());
   for (int i = 0; i < call_->ArgumentCount(); ++i) {
     arguments.Add(call_->PushArgumentAt(i)->value());
   }
   InlinedCallData call_data(call_, &arguments,
@@ skipping 2292 matching lines @@
       return true;
     }
 
     default:
       return false;
   }
 }
 
 
 }  // namespace dart